Monday, 25 November 2013

The Orion Nebula is a diffuse nebula situated south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky.

A nebula is an interstellar cloud of dust, hydrogen, helium and otherionized gases. The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features.

The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust.

Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizingeffects of massive nearby stars in the nebula.

Orion’s nebula might hold the answer for many of the millions of questions about the universe.

Comet ISON high speed travel through the solar system, and astronomers can not wait 28 November because, as they say, cause a real cosmic spectacle.The
heavenly body will then undergo incredibly close to the sun , which
will cause the evaporation of ice within the comet which will result
produce characteristic and clearly visible tail.

Using
a network of telescopes Russian International Scientific Optical
Network ( ISON ) comet was first discovered in September last year. When 28 November
is gone along with the sun , the stars of our being is only a million
kilometers, which is 150 times smaller distance of Earth from the Sun.

That the whole situation even more interesting , ISON will pass 100 times closer to the Sun than in 1997. flew the Comet Hale - Bopova , which is 18 months could be seen with the naked eye. Close
to the sun will also heat up the comet , composed of ice, metal and
stone to 2,760 degrees Fahrenheit, so it will be much brighter than most
comets , and some scientists say we could not overshadow the Moon .